Furuno CH-250 Manual de usuario descargar pdf (Pagina 77)

4-9

4.10.2 Finding echo strength (A-scope display)

The A-scope display shows echoes at each transmission with amplitudes and tone proportional

to their intensities on the right 1/4 of the screen. It is useful for estimating the kind of fish school

and bottom composition.

1. Press the [MENU] key.

2. Press

to select MENU.

3. Press

or to select ES.

4. Press

to select A-SCOPE.

5. Press

or to open the dialog box.

A-SCOPE

OFF ON

6. Press

to select ON.

7. Press the [MENU] key to close the dialog box.

A-scope display

Echo sounder picture

Figure 4-8 A-scope display

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 117 118

COLOR LCD SEARCHLIGHT SONAR 1
*00080894802**00080894802* 2
*OME13160L00**OME13160L00* 2
SAFETY INSTRUCTIONS 3
TABLE OF CONTENTS 5
FOREWORD 7
Usage Precautions 8
SYSTEM CONFIGURATION 9
1. OPERATIONAL OVERVIEW 11
1.2 Remote Controller 12
1.3.1 Power on 13
1.3.2 Power off 13
DIMMER:3 15
1.6 Selecting a Display 16
1.7 Adjusting the Gain 17
1.8 Basic Menu Operation 17
DELETING TRACK 18
NO YES 18
2. HORIZONTAL MODE 19
Sweep indicator 20
(Shows train position 20
2.3 Selecting the Range 21
2.4 Selecting Sector Width 22
2.5 Selecting Train Center 23
2.6 Selecting the Tilt Angle 23
Fish school "a" 24
Points to consider 25
2.6.4 Suitable tilt angle 26
2.9 Event Marker 28
DELETE EVENT MARK? 29
2.11 Adjusting the Picture 30
PULSELENGTH 31
LONG SHORT 31
TVG DISTANCE 32
2.11.4 Erasing weak echoes 33
2.12 Target Lock 35
Target lock indicator 36
Target lock marker 36
2.12.4 Echo mode 37
Automatic echo tracking mode 37
Manual echo tracking mode 38
2.14.2 Sample echo displays 42
Bottom echoes 42
Fish schools 43
Sea surface reflections 44
Sidelobe echo (false echo) 45
Noise and interference 45
Horizontal/history display 46
Horizontal Display 47
Horizontal/strata display 48
Strongest 49
3. VERTICAL FAN MODE 51
RANGE m 53
3.4 Selecting Train Center 54
Sector (Shown: 24˚) 55
3.6 Selecting Sector Center 56
Cursor data 57
+→ : Horizontal range 57
↓: Depth 57
3.9 Event Marker 58
3.11 Adjusting the Picture 60
3.12 Vertical Menu Overview 62
3.13.2 Sample echo displays 64
Display of net hauling 65
False echo 65
TRAIN control 66
SECTOR control 67
4. ECHO SOUNDER MODE 69
4.4 Train Direction 72
4.5 Selecting Tilt Angle 72
4.8 Event Marker 73
4.9 Range Marker 75
4.10 Adjusting the Picture 75
A-scope display 77
Echo sounder picture 77
5. MENU OPERATION 81
5.1.1 COM1 menu description 82
5.2 COM2 Menu 83
COM1 HORZ VERT ES PRESETCOM2 84
RANGE-TRACK MODE 85
5.3.2 Preset key 86
Activating custom mode 86
5.3.3 Short-cut key 87
Activating a short-cut key 87
VERTICAL SEARCH FUNCTION 88
5.4 SYS Menu 89
SYSTEM SETTING 1 menu 90
ETA marker 91
SHIPS SPEED 93
EXCEEDS 15 kt 93
(SLOW DOWN UNDER 15 kt WHEN 93
NO YESARE YOU SURE? : 94
: CHANGE MENU: END 94
** FACTORY SETTING ** 94
SETTING 94
5.4.5 Track range settings 98
5.4.6 Color palette 99
5.4.7 Language 100
5.4.8 System backup 100
5.4.9 Loading backup data 100
5.4.11 Demonstration mode 101
Figure 5-23 Default menu 102
6. MAINTENANCE 103
TROUBLESHOOTING 103
6.3 Hull Unit Maintenance 104
6.4 Transducer Maintenance 105
6.5 Fuse Replacement 105
6.6 Troubleshooting 106
6.7 Error Messages 107
6.8 Diagnostics 108
6.9 Test Pattern 110
MENU TREE 111
SP - 1 E1316S01H 113
SP - 2 E1316S01H 114
SP - 3 E1316S01H 115

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Furuno CH-250 Manual de usuario Pagina 77

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